TierraCast Antique Copper Deco Barrel Bead. The outside diameter is about 6mm x 17mm. The inner diameter is 2.2mm by 12mm. This bead is designed to fit on TierraCast leather straps.All TierraCast findings are designed and manufactured in the USA. They are high quality lead and nickel free pewter pieces. To see all of our TierraCast charms, beads and findings, please see our TierraCast SmartCollection.